Manuals / Bryant / Household Appliance / Air Conditioner

Bryant 581B Ð Outdoor-AirThermostat/Enthalpy, Control Installation, Damper Characteristics

Models: 581B

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Fig. 23 Ð Outdoor-Air Thermostat/Enthalpy

B

REV

.

MINIMUM

B

OPEN

8

POSITION

A

C

1

S

O

TR

1

D

S

8

8

T

3

1

P

T1

4

2

5

P1

10

30

D

AT

CONTACT

OR

CONTACTS

TR

UH%

RUSH

ID IM

90

UNPOWERED

50

C

–

24VAC

YT

60

70

ENTHALPY

60

CW

5A

ATE

3

DAMPER

2

OUTDOOR

55

OPEN

B

SETPOINTS

RATINGS:

ST

SHOWN

24VAC

3 .

HIGH

A

1

IN

75

CLOSED DAMPER

mA

RUN,

TR1

CONTROL

F

VDC

1

TEMP

65 70

MIN

ENTHALPY

°

CCW

11

IN

–

.

3

.

AT

5A

.

80

85

REV.

97-3672

Fig. 23 Ð Outdoor-Air Thermostat/Enthalpy

Control Installation

LEGEND

OAT Ð Outdoor-Air Thermostat

NOTE: See unit wiring diagram for details.

Fig. 24 Ð Wiring Connections for Outdoor-Air

Thermostat

Fig. 25 Ð Varislide™ Economizer Barometric Relief

Damper Characteristics

Save panels and screws. Remove optional economizer so the outdoor-air damper hood package can be re- moved from the ®lter section. See Fig. 16.

3.Assembly outdoor-air hood top and side plates as shown in Fig. 17. Install seal strips on hoop top and sides. Put aside screen retainer and retainer screw for later assembly. Do not attach hood to unit at this time.

4.Slide economizer into unit and secure with screws. See Fig. 26.

NOTE: Be sure to engage rear economizer ¯ange under tabs in vertical return-air opening.

5.Insert economizer plug into economizer harness. Re- move tape from barometric relief damper. See Fig. 26.

6.If ventilation is not required, proceed to Step 7. If ven- tilation air is required, perform the following:

a.Make sure the factory-installed jumper is in place across terminals P and P1 on the economizer logic module. T and T1 should be disconnected during adjustment.

b.The 2 potentiometers with slots for adjustment are located on the face of the economizer logic module. Turn the lower potentiometer fully clockwise. The dampers should be fully closed. Turn the potenti- ometer gradually counterclockwise until the de- sired position is reached.

c.Connect T and T1 to the 24V power supply.

Ð15Ð

Image 15

Bryant 581B Ð Outdoor-AirThermostat/Enthalpy, Control Installation, Ð Wiring Connections for Outdoor-Air

Contents

Fig. 1 Ð Typical Unit IMPORTANT Ð READ BEFORE INSTALLINGCONTENTS SAFETY CONSIDERATIONSFig. 2 Ð Base Unit Dimensions B. Roof Curb Mount INSTALLATIONFig. 3 Ð Service and Operational Clearances I. LOCATE THE UNIT A. ClearanceFig. 4 Ð Roof Curb Dimensions Fig. 6 Ð Rigging Details Fig. 5 Ð Unit Leveling TolerancesII. UNIT DUCT CONNECTIONS III. RIG AND PLACE UNITTable 1 Ð Specications A. External Trap Condensate Drain B. Install Flue HoodWith Accessory Utility Connections Package IV. FIELD CONNECTIONSFig. 11 Ð Sediment Trap Based on a 0.60 Specic Gravity GasD. Field Duct Connections Fig. 12 Ð Location of Coil Area Not To Be DrilledE.Electrical Connections Without Economizer or Two-PositionDamper Fig. 13 Ð Power Wiring ConnectionsFig. 15 Ð Field-ControlWiring Raceway Fig. 14 Ð Low-VoltageConnections With orHigh-VoltageConnections Fig. Table 4 Ð Thermostat List G. Optional Varislide Economizer Fig. 16 Ð Typical Access Panel LocationsF. Accessory Installation Fig. 18 Ð Varislide Economizer Installed in Unit90 Degree Rotation Fig. 20 Ð Horizontal Discharge Block-OffPlateH. Optional PARABLADE Economizer Fig. 23 Ð Outdoor-AirThermostat/Enthalpy Control InstallationFig. 24 Ð Wiring Connections for Outdoor-Air Damper CharacteristicsFig. 26 Ð PARABLADE Economizer Installed in Unit Fig. 28 Ð Panels Reinstalled On UnitFig. 29 Ð Outdoor-AirHood Installed On Unit Fig. 30 Ð Filter Installed on Outdoor-AirHood PRE-START-UPSTART-UP I. COMPRESSOR ROTATION A. Checking Heating Control Operation II.HEATING SECTION START-UPAND ADJUSTMENTSB. Safety Relief E. Adjusting Gas InputFig. 31 Ð Burner Tray Details K. Rollout Switch G. Air¯ow and Temperature RiseH. Safety Check of Limit Control J. Limit SwitchesC. Unit Controls III. COOLING SECTION START-UPAND ADJUSTMENTSB.Checking and Adjusting Refrigerant Charge A. Checking Cooling Control OperationFig. 33 Ð Belt Drive Motor Mounting IV. INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTSFig. 34 Ð Evaporator-FanPulley Adjustment A. Belt Drive MotorsTable 7 Ð Fan Rpm at Motor Pulley Settings B. Ventilation SequenceTable 8 Ð Evaporator Fan Motor Data Ð24Ð Ð25Ð Ð26Ð Ð27Ð I.AIR FILTER SERVICEI. CLEANING CARE AND MAINTENANMCEIV. ECONOMIZER ADJUSTMENT Fig. 35 Ð Cleaning Condenser CoilIII.CONDENSER-FANADJUSTMENT Fig. Fig. 38 Ð Condenser Fan AdjustmentB. Low Charge Cooling C. To Use Cooling Charging ChartsFig. 39 Ð Cooling Charging Chart, 581B036 Fig. 40 Ð Cooling Charging Chart, 581B048Table 17 Ð LED Error Code Description Fig. 43 Ð Burner Section Details IX. LIMIT SWITCHFig. 41 Ð Cooling Charging Chart, 581B060 Fig. 42 Ð Cooling Charging Chart, 581B072B.Cleaning and Adjustment XI. REPLACEMENT PARTSFig. 44 Ð Spark Adjustment Ð33Ð TROUBLESHOOTINGTable 18 Ð LED Error Code Service Analysis Table 19 Ð Heating Service AnalysisÐ34Ð Table 20 Ð Cooling Service AnalysisÐ35Ð Table 21 Ð Varislide Economizer TroubleshootingÐ36Ð Table 22 Ð PARABLADE Economizer TroubleshootingÐ37Ð AND COMPONENT ARRANGEMENT Page I. PRELIMINARY INFORMATION START-UPCHECKLISTTEMPERATURES Remove and Store in Job File